Não informado. (1967). Health consequences of smoking. Health Services and Mental Health Administration.
Chicago-referens (17:e uppl.)Não informado. Health Consequences of Smoking. Washington: Health Services and Mental Health Administration, 1967.
MLA-referens (8:e uppl.)Não informado. Health Consequences of Smoking. Health Services and Mental Health Administration, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.